Airplane



FIG. 1 is a top plan view of an airplane, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevation view thereof; the opposite side being amirror image of that shown;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a rear elevation view thereof.

The broken lines showing in FIGS. 2-5 are included for the purpose ofillustrating environment and form no part of the claimed design.

The ornamental design for an airplane, substantially as shown anddescribed.